I just received the MISRA-C:2004 edition and I have a question regarding the references to the C-Standard documentation. The MISRA-C:2004 references explicitely to the ISO/IEC 1990 version and specifically to Annex G. I have a copy of the IEC/ISO 1999 version and Annex G deals with complex numbers, not undefined behavior (which is Annex J). Did the ISO/IEC standard change that much between the 1990 version and the 1999 version that I really need to hunt down a 1990 copy?